The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 07, 1977
Filed:
Apr. 16, 1975
Yukio Yamamoto, Kurobe, JA;
Yukio Sado, Shimoniikawa, JA;
Yoshida Kogyo Kabushiki Kaisha, Tokyo, JA;
Abstract
There is disclosed a ventilator for use with windows, doors, or other building hardware. The ventilator includes an inner plate having air vents and an outer plate spaced apart from the inner plate in the transverse direction of the ventilator and providing an opening displaced from the air vents. Provided between the inner and outer plates are a filter and a partition extending from the inner plate toward the outer plate until it abuts against the filter. The partition is adapted to direct a flow of air from the opening to the air vents at least twice through the filter. The ventilator is prefabricated as a unit and is easily installed within the windows, doors and the like.